(PPh4)2[Mn(Se4)2]; Synthese und Kristallstruktur / (PPh4)2[Mn(Se4) 2]; Synthesis and Crystal Structure
| Autor: | Gertrud Kräuter, Ulrich Müller, My-Linh Ha-Eierdanz, Kurt Dehnicke |
|---|---|
| Rok vydání: | 1990 |
| Předmět: | |
| Zdroj: | Zeitschrift für Naturforschung B. 45:695-700 |
| ISSN: | 1865-7117 0932-0776 |
| Popis: | (PPh4)2[Mn(Se4)2] has been prepared by the reaction of a lithium poiyseienide solution in DMF with MnCl2.4H2O at 100 °C in the presence of PPh4Br. The compound forms black crystals, which were characterized by IR spectroscopy as well as by an X-ray structure determination. Space group P21, Z = 4, 3622 observed unique reflexions, R = 0.076. Lattice dimensions at 19 °C: a = 1017.2(3), b = 1405.9(3), c = 3427.7(8) pm, β = 92.04(2)°. The compound consists of PPh4⁺ and [Mn(Se4)2]2- ions, in which the manganese atom is tetrahedrally surrounded by four selenium atoms of two chelating Se4 2- units. The structure is isotypical with that of (PPh4)2[Zn(Se4)2]. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|